# Mastery for GCSE Edexcel

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22

## Inside the Unit...

### Areas Covered

• Lesson 1: Sample size
• Lesson 2: Tree diagrams
• Lesson 3: Venn diagrams
• Lesson 4: Dependent events
• Lesson 5: Use tables and diagrams
• Lesson 6: Solve probability problems
• Unit assessment

There are 6 exercise sheets and an examination-style assessment test, each with answers included in this unit.

## Mathematics Mastery

Our resources apply the principles of Mastery throughout, creating a rich and deep learning experience. Find out more about Mastery with our quick guide.

## Summary

This unit builds on the earlier probability in Unit 9 to develop understanding of the use of diagrams, charts and tables in solving probability problems. The unit begins with a consideration of the impact of sample size on the relative frequency obtained. Graphs are used to support understanding. Tree diagrams are used to represent the outcome of dependent and independent events and to calculate the probabilities of these outcomes. Venn diagrams are also introduced to represent outcomes and to support the calculation of probabilities from real-life contexts and with an emphasis on developing reasoning skills. Two-way tables are then considered and the unit closes by exploring probability problems linked with other areas of mathematics such as algebra and data handing.

## What's included in the toolkit?

The GCSE units have been written to satisfy the specification for the Edexcel 1MA1 Maths GCSE. Each unit contains:

• PowerPoint slides for each component
• Detailed lesson plans
• Learning objectives and outcomes
• Exercise sheet activities with answers
• End-of-unit, exam-style assessment test with answers
• Other material and links to online resources

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Kieren Reynolds. CAS Master teacher and teacher, Henry Beaufort School

## Inside the Unit...

### Areas Covered

• Lesson 1: Sample size
• Lesson 2: Tree diagrams
• Lesson 3: Venn diagrams
• Lesson 4: Dependent events
• Lesson 5: Use tables and diagrams
• Lesson 6: Solve probability problems
• Unit assessment

There are 6 exercise sheets and an examination-style assessment test, each with answers included in this unit.

## Mathematics Mastery

Our resources apply the principles of Mastery throughout, creating a rich and deep learning experience. Find out more about Mastery with our quick guide.

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